JPH05278151A - Method and apparatus for treating punched refuse due to grip puncher - Google Patents

Abstract

PURPOSE:To compress punched refuse generated by punching two or more superposed thermoplastic films of a handbag or a bag material strip becoming the handbag without scattering the same to form a block. CONSTITUTION:Punched refuses T are successively pushed in a short guide passage 13a conforming with the planar shape of said refuses and a rib 14 is provided to the outlet-part of the lower end of the passage 13a so as to project to the inside to compress a large number of the punched refuses within the short guide passage 13 and a part of the outer peripheries of the punched refuses T or the whole thereof is successively welded by a heater when the punched refuses pass through the rib 14 to form a block.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for forming a handholding hole in the vicinity of the edge of a synthetic resin film bag, and more particularly to the treatment of punched waste.

[0002]

2. Description of the Related Art Conventionally, in a device of this type, a method and a device are disclosed in which two or more films are stacked to melt and cut holes, and the punching waste is melted in the lower part of the heat sealer and discharged. No. -15381.
In the method and apparatus described in this publication, punching scraps are melted and discharged. However, melting the punching scraps at a temperature that is too high for recycling causes deterioration of the quality, and the scrap catcher. It takes a lot of time for the post-treatment to remove it by adhering to the container. Also, the technology described in this publication cannot be used in the case of a press-type punching method. Further, the optimum temperature of the heat sealer for punching and the optimum temperature for melting do not always match, which may cause difficulty in temperature adjustment.

[0003]

SUMMARY OF THE INVENTION According to the present invention, when a bag hole for a bag is formed by heat-welding or fusing, punching waste is not scattered but is compressed into a block and discharged. It is to provide a processing method and an apparatus therefor to the market.

[0004]

In order to achieve the above-mentioned object, the present invention provides a method of punching by cutting or heat-welding the vicinity of the mouth of a thermoplastic film bag into a closed loop shape. The punching scraps formed in this manner are stacked one after another in the punching scrap discharge guide path and pressed downward while being compressed, and at least a part of the periphery of the punching scraps group is brought into contact with the heater, and the punching scraps are contacted with each other. A grip puncher punching waste processing method is characterized in that the periphery of the group is sequentially fusion-bonded.

In order to achieve the above-mentioned object, the method of sequentially fusion-bonding the periphery of the punching scrap group in the grip puncher punching scraps processing method is a method of sequentially contacting the entire circumference of the punching scrap group with the heater. In some cases, it is characterized by being present. Further, in order to achieve the above-mentioned problems, the method of sequentially fusion-bonding the periphery of the punching scraps group of the grip puncher punching scraps processing method is at least a pair of inwardly facing peripheral portions of the entire circumference of the punching scraps group. In some cases, it may be characterized by a method of sequentially contacting the heater.

In order to achieve the above-mentioned object, a tubular welding fusing type heat sealer having an edge of the same plane shape as the grip hole to be punched in the grip puncher punching waste disposal method is brought into contact with and separated from the fixed pedestal. The fixed pedestal is provided with a carry-out hole for carrying out punching waste in the inner portion where the edge of the heat sealer hits, and a knockout member is provided in the heat sealer. Is a punching device that moves up and down in synchronization with the heat sealer, and when the edge of the heat sealer is in pressure contact with the fixed pedestal surface, descends at least flush with the edge surface or lower than the edge surface to a position lower than the edge surface. At the lower side of the carry-out hole, there is a flat shape similar to or slightly larger than the flat shape of the punching scrap. A guide path is provided, and an inwardly protruding rib is formed at the lower end opening of the guide path, and the opening has a size narrower than the punching scrap shape, and at least a part of the rib is formed. A grip puncher punching waste processing device characterized by being used as a heater.

In order to achieve the above-mentioned object, according to the present invention, a cylindrical heat-welding and fusing-type sealer having an edge of the same plane shape as a grip hole to be punched into a fixed pedestal is in contact with the fixed pedestal. It is equipped so as to be detachable, and the fixed cradle is provided with a carry-out hole for carrying out punched waste in the inner part where the edge of the heat sealer hits, and a knockout member is equipped in the heat sealer. The member moves up and down in synchronization with the heat sealer, and when the edge of the heat sealer is pressed against the fixed pedestal surface, the punching device descends at least from the position flush with or above the edge face to a position lower than the edge face. In the above, a short guide path having a flat shape similar to or slightly larger than the flat shape of the punching waste is provided on the lower side of the carry-out hole, The lower end opening of the guideway, is provided with at least one pair with projections opposed overhanging inwardly, gripping puncher chippings processing apparatus in which all or part this projection is characterized in that as a heater.

[0008]

In addition to the operation of the apparatus invention of claim 4,
The method invention will be described. First, the side edge portion of the bag material band at the edge portion of the bag made of a synthetic resin film to be punched or the portion which becomes the mouth edge of the bag is supplied onto the fixed pedestal. The mouth edge of this bag may be a single film or two sheets folded back inward, or may be a three-layered film having a reinforcing sheet inserted inside the folded back. Then, the heat sealer and the heater are welded and heated to a required temperature, respectively. Next, the heat sealer is lowered, and the rim of the bag on the fixed pedestal is pressed against the fixed pedestal, and the rim of the bag is welded to the closed loop shape of the edge by the heat sealer, and The surrounding overlapping films are welded together. The punching waste surrounded by the edge is pushed down into the carry-out hole by the knockout member. While the punching operation is repeated several times in this way, the punching scraps are sequentially pushed downward, and are piled up in the short guide passage so as to be piled up, and the lowermost ones come into contact with the ribs protruding inward.

While the punching work is repeated, the group of punching scraps in the guide path becomes full and is compressed by the rib and the knockout member, and the punching scraps in the lowermost layer are strongly pressed against the ribs and a part of the periphery thereof. Alternatively, all of them are softened and melted by the heat of the heater, and the periphery of the upper and lower punching layers are fused, and they are extruded downward from the lower layer one by one through the openings formed by the ribs. The group of stacked punched scraps extruded from the opening is compressed and carried out as a lump in which the peripheral portion is welded. In the invention according to claim 1, when the punching method is a press die punching method using a die and a punch instead of the heat sealer for fusing and welding, the periphery of the perforated hole of the film at the edge of the bag is adopted. Is not welded, it is simply cut. The punching scraps are sequentially deposited in the guide passage from the unloading hole, and the lower ones are sequentially welded to all or part of the periphery when passing through the rib part, which is the same as when using the heat sealer described above. is there.

According to the second aspect of the present invention, when the punching waste is discharged from the lower end opening of the guide path, the entire circumference of the punching scrap is brought into contact with the heater and melted. It

In the apparatus according to the fifth aspect, the punching dust group is supported by at least a pair of protrusions at the lower end of the short guide path, the punching dust group is compressed between the protrusion and the knockout member, and the position of this protrusion is adjusted. When passing, a part of the punching dust group is sequentially brought into contact with each other at a position opposed to each other in the axial direction by the heater for heating a part of the projection, and the punching dust group in this portion is sequentially welded to each other vertically and discharged. That is, the method of claim 3 is performed.

[0012]

EXAMPLE Now, a typical example of the present invention will be described. First Embodiment of Apparatus Invention As shown in FIGS. 1 and 2, 10 is a fixed pedestal, and a heat-resistant elastic layer 11 such as a silicone rubber layer is formed on the surface of the fixed pedestal. A carry-out hole 12 slightly smaller than the shape to be punched is formed in the hole 10. 20
Is a fusion-melting type heat sealer, which has a cylindrical shape, a lower edge 21 of which is a non-circular shape having a closed loop shape, and the silicone rubber layer 11 on the upper surface of the edge of the carry-out hole 12.
The first air cylinder device 22 mounted on the machine frame 30 is used. Reference numeral 23 denotes a second air cylinder device mounted on the mounting frame 24 of the tubular heat sealer 20, and a knockout member 25 integrated with the movable member is mounted inside the heat sealer 20,
The lower end surface 26 of the knockout member 25 is provided so as to be vertically movable from a position flush with the plane including the edge to a position below the plane including the edge 21. The second air cylinder device 23 may be directly mounted on the machine frame 30 instead of the mounting frame 24. The above is an example of the front bank condition.

In the apparatus according to the embodiment of the present invention, a short guide tube 13a as a kind of a short guide path is provided below the carry-out hole 12 of the fixed pedestal 10, and its length is 10
It is preferably about mm to 50 mm, but this value is not particularly limited. As an example of the aforementioned short guideway,
Not limited to the short guide cylinder 13a, the punch plate 13b is formed into a cylindrical shape as shown in FIG. 4, or the basket-shaped guide path 13c formed into a basket shape by several guide bars as shown in FIG. As shown in FIG. 6, a pair of gutter-shaped curved plates 13d formed facing each other is also included in the embodiment of the short guide path. Reference numeral 14 denotes a rib projecting inward from the lower end of the short guide path 13a. In the embodiment shown in FIGS. 1 and 2, the rib 14 is projected to the entire circumference. The heater 15 is embedded in the rib 14 to form the rib 14. It's heated.

Operation of Embodiment 1 First, two or more layers of film are placed on the heat sealer and fixed pedestal 10 at the rim of the bag B or the side edge of the bag material band to be the bag. Next, the heat sealer 20 is lowered from the upper standby position by the first air cylinder device 22, and when the edge 21 presses the film against the fixed pedestal 10, the heat of the heat sealer 20 causes the film to have a planar shape of the edge 21. While being fused, the peripheral edges of the holes formed in the several films are welded to each other by the heat of the heat sealer 20. While the heat sealer 20 is in pressure contact with the fixed pedestal 10, the second air cylinder device 23 starts to operate, the knockout member 25 descends, and the punching waste T punched out passes through the carry-out hole 12 and the short guide tube 13a.
When pushed in, the knockout member 25 returns to the upper standby position, and the heat sealer 20 also returns to the upper position. While repeating such an operation several tens of times, the short guide tube 1
A large number of punching scraps T are sequentially piled up and accumulated in 3a, and the lowermost one is supported by the ribs 14 and is pressed by the knockout member 25, so that a large number of punching scraps T are formed between the punching scraps T and the ribs 14. Compressed, punching waste T in the bottom layer
As a result, when passing through an opening that is slightly narrower than this, the periphery of each punching scrap T is in strong contact with the rib 14 that is heated by embedding the heater 15, and the outer periphery thereof is melted and the punching scrap T that is vertically stacked. The group is sequentially fused and formed into a rod shape, and the molten portion is sequentially solidified from the portion where the rib 14 is separated, and the punching waste T group is discharged as a lump T ₀ .

Embodiment 2 As shown in FIG. 3, two pairs of protrusions 14a and 14b are provided in opposition to each other instead of the rib 14, and a heater 15 is attached to the pair of protrusions 14a. ..
Others are the same as those in the first embodiment. In this embodiment, the punching waste T accumulated in the short guide cylinder 13a is supported by the two-to-two sets of projections 14a and 14b, and one pair of the projections is the projection 14a to which the heater 15 is attached. Only in this part, the punching scraps T are fused to each other. In this embodiment, the protrusions 14a, 1
The total number of 4b may be one pair when the width is somewhat wide, or three or more pairs are included in this embodiment.

Embodiment 3 As shown in FIG. 7, a punching die 15 is attached to the upper surface of the fixed pedestal 10, and a punch 20b fitted to this is replaced with the heat sealer 20 of Embodiment 1. It is attached. The planar shape of the die 16 and the punch 20b is the same as the planar shape of the heat sealer 20 of the first embodiment. The knockout member 25, the second air cylinder device 23 as the driving means, and other configurations are the same as those in the other embodiments. That is, the structure of the precondition part of the invention is a press-type punching device, and the rest is the same as in the first or second embodiment. In the embodiment of FIGS. 4 to 6, the side surfaces of the short guide passages 13 (13b, 13c, 13d) are open to the outside air, so that when the punching chips T are accumulated, the air between the punching chips T is Pushed out,
Contact each other in a short time.

[0017]

According to the method of the present invention, which has the above-mentioned structure and functions, the punching scraps punched by cutting or fusing are successively stacked and compressed at least. The part of the periphery is sequentially fused and discharged as a lump in sequence. Therefore, the punched chips are not individually dissipated and the volume is compact.
In addition, punching chips can be made into blocks regardless of fusing or cutting. According to the second aspect of the present invention, the entire circumference of the stacked punched chips is fused and integrated, and the coating is formed on the outer peripheral surface of the block even in the subsequent processing, and the degree to which dust and the like enter between the punched chips. It is easy to handle as a recycled material. According to the third aspect of the present invention, since a part of the stacked punching scraps is sequentially welded in the axial direction, the number of fused portions is small and the heat energy for blocking is small.

According to the apparatus invention of claim 4, the method inventions of claims 1 and 2 can be carried out, and the area of the opening surrounded by the heater constituted by the ribs is determined by the plan shape of each punching scrap. Since each punching dust is a little small, each punching dust is always supported once in this portion, and at that time, it is pressed against the heater, and the periphery thereof is surely melted, and the upper and lower punching dusts are compressed into blocks. Therefore, it is not necessary to raise the heating temperature of the heater so much.

In the apparatus invention according to the fifth aspect, the method invention according to the third aspect can be implemented, and since the heat generating portion of the heater may be small, the heat source used for the heater may be a small wattage and power consumption. Small quantity.

[Effects peculiar to the embodiment] In addition to the effects of the invention of the present invention, the heat sealer 20 and the heater 15 of the rib 14 are provided in the device of the first embodiment.
Since they are separate from each other, they can be adjusted to the optimum temperatures independently of each other, and are particularly suitable for those in which two or more supplied films are superposed. In the device of the second embodiment, the same effect as that of the invention of claim 5 is obtained. When the short guide path shown in FIGS. 4 to 6 is used, the air permeability to the outside air is good, the heat of the heater 15 is not unnecessarily conducted to the fixed pedestal 10, and the heat is distorted when the film is supplied. There is no fear. Further, since the air between the punching scraps T easily dissipates to the surroundings, the punching scraps T can be easily compressed, and the scrap density when the blocks are formed increases. The embodiment of FIG. 7 is suitable when the film itself is prone to thermal strain or when perforating a single film.

[Brief description of drawings]

FIG. 1 is a partial vertical cross-sectional side view of a first embodiment of an apparatus invention.

FIG. 2 is a cross-sectional plan view taken along line 2-2 of FIG.

FIG. 3 is a partial cross-sectional plan view of Embodiment 2 of the device invention.

FIG. 4 is a perspective view of an embodiment of a short guideway.

FIG. 5 is a perspective view of another embodiment of the short guide path.

FIG. 6 is a perspective view of a further embodiment of the short guideway.

FIG. 7 is a partial vertical sectional side view of a third embodiment of the apparatus invention.

FIG. 8 is a perspective view of a bag and punch block produced and produced by the method and apparatus invention.

[Explanation of symbols]

 10 Fixed Cradle 12 Outlet Hole 13 Short Guide Path 14 Rib 15 Heater 20 Heat Sealer 21 Edge

Claims (5)

[Claims] 1. A method of punching by punching by cutting or heat-welding the vicinity of the edge of a thermoplastic film bag into a closed loop shape, wherein the punching waste formed by punching is in a punching waste discharge guide path. Grip puncher, characterized in that at least a part of the periphery of the punching scrap group is brought into contact with the heater while being pressed and discharged downward while sequentially overlapping and compressing, and the periphery of the punching scrap group is sequentially fused and connected. Punching waste processing method. 2. The grip puncher punching scraps according to claim 1, wherein the method of sequentially fusion-splicing the periphery of the punching scraps group is a method of sequentially contacting the entire circumference of the punching scraps group with the heater. Processing method. 3. The method of sequentially fusion-bonding the periphery of the punching dust group is a method of sequentially contacting at least a pair of inwardly facing peripheral portions of the entire periphery of the punching dust group with a heater. The gripping puncher punching waste processing method according to claim 1. 4. A tubular heat-sealing type fusion sealer having an edge of the same plane shape as a grip hole to be punched is attached to and detachable from the fixed pedestal, and the fixed pedestal has the heat sealer. There is a discharge hole for discharging punching waste in the inner part where the edge of hits, and a knockout member is provided in the heat sealer, and this knockout member moves up and down in synchronization with the heat sealer, and the edge of this heat sealer In a punching device that descends to a position lower than the edge surface from at least a position flush with the edge surface or a position higher than the edge surface when pressingly contacting the fixed pedestal surface, the punching scrap plane is provided below the carry-out hole. There is a short guideway that is similar to or slightly larger than the shape and has a similar planar shape, and a rib that projects inward is provided at the lower end opening of this guideway. A grip puncher punching dust processing device, wherein the opening is formed to have a size narrower than the punching dust shape, and at least a part of the rib serves as a heater. 5. A cylindrical heat-welding and fusing-type sealer having an edge of the same plane shape as a grip hole to be punched with respect to a fixed pedestal is provided so as to be able to come in contact with and separate from said fixed, The pedestal is provided with a discharge hole for discharging punching waste in an inner portion where the edge of the heat sealer hits, and a knockout member is provided in the heat sealer, and the knockout member moves up and down in synchronization with the heat sealer. In the punching device that descends to a position lower than the edge surface from a position at least flush with the edge surface or above the edge surface when the edge of the heat sealer is pressed against the fixed pedestal surface, Is provided with a short guideway having a flat shape similar to or slightly larger than the flat shape of the punching scraps, and the lower end opening of this guideway projects inward. At least a pair of protrusions are provided facing each other, and all or a part of the protrusions are used as a heater.